Need parts for Good Gaming PC

I Still haven't bought the parts I want for my new PC since I don't even know which parts i should even get.
Im on a budget of £500 (Around 800$)
The parts I need Are the GPU, CPU, Mobo and Power supply
Need something to play BF4 On ultra and Arma 3 On ultra
Suggest parts to me and I will look at them!

Well a better idea might be to switch out the G45 with a G43(£80) and get the Sapphire Radeon R9 280X Dual-X OC AMD Graphics Card - 3GB (£221) and you can get the 4670k from Aria, the price does fluctuate though so when you see the 4670k on sale, grab it.

Well a better idea might be to switch out the G45 with a G43(£80) and get the Sapphire Radeon R9 280X Dual-X OC AMD Graphics Card - 3GB (£221) and you can get the 4670k from Aria, the price does fluctuate though so when you see the 4670k on sale, grab it.

If you can find one listed as RECERT AS NEW then get it, most of those SSD's have been refurbished my the company that makes them but they aren't allowed to be sold as new so the get a ton taken off the RRP. You can try some sites like Aria or Scan for some.